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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html')
| -rw-r--r-- | testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html b/testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html new file mode 100644 index 0000000000..99bc65bd60 --- /dev/null +++ b/testing/web-platform/tests/intersection-observer/isIntersecting-change-events.html @@ -0,0 +1,113 @@ +<!DOCTYPE html> +<meta name="viewport" content="width=device-width,initial-scale=1"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="./resources/intersection-observer-test-utils.js"></script> + +<style> +pre, #log { + position: absolute; + top: 0; + left: 200px; +} +#root { + position: absolute; + top: 0; + left: 0; + width: 150px; + height: 200px; + overflow-y: scroll; +} +#target1, #target2, #target3, #target4 { + width: 100px; + height: 100px; +} +#target1 { + background-color: green; +} +#target2 { + background-color: red; +} +#target3 { + background-color: blue; +} +#target4 { + background-color: yellow; +} +</style> + +<div id="root"> + <div id="target1"></div> + <div id="target2"></div> + <div id="target3"></div> +</div> + +<script> +var entries = []; +var observer; + +runTestCycle(function() { + var root = document.getElementById('root'); + var target1 = document.getElementById('target1'); + var target2 = document.getElementById('target2'); + var target3 = document.getElementById('target3'); + assert_true(!!root, "root element exists."); + assert_true(!!target1, "target1 element exists."); + assert_true(!!target2, "target2 element exists."); + assert_true(!!target3, "target3 element exists."); + observer = new IntersectionObserver(function(changes) { + entries = entries.concat(changes); + }, { root: root }); + observer.observe(target1); + observer.observe(target2); + observer.observe(target3); + entries = entries.concat(observer.takeRecords()); + assert_equals(entries.length, 0, "No initial notifications."); + runTestCycle(step0, "Rects in initial notifications should report initial positions."); +}, "isIntersecting changes should trigger notifications."); + +function step0() { + assert_equals(entries.length, 3, "Has 3 initial notifications."); + checkRect(entries[0].boundingClientRect, [0, 100, 0, 100], "Check 1st entry rect"); + assert_equals(entries[0].target.id, 'target1', "Check 1st entry target id."); + checkIsIntersecting(entries, 0, true); + checkRect(entries[1].boundingClientRect, [0, 100, 100, 200], "Check 2nd entry rect"); + assert_equals(entries[1].target.id, 'target2', "Check 2nd entry target id."); + checkIsIntersecting(entries, 1, true); + checkRect(entries[2].boundingClientRect, [0, 100, 200, 300], "Check 3rd entry rect"); + assert_equals(entries[2].target.id, 'target3', "Check 3rd entry target id."); + checkIsIntersecting(entries, 2, true); + runTestCycle(step1, "Set scrollTop=100 and check for no new notifications."); + root.scrollTop = 100; +} + +function step1() { + assert_equals(entries.length, 3, "Has 3 total notifications because isIntersecting did not change."); + runTestCycle(step2, "Add 4th target."); + root.scrollTop = 0; + var target4 = document.createElement('div'); + target4.setAttribute('id', 'target4'); + root.appendChild(target4); + observer.observe(target4); +} + +function step2() { + assert_equals(entries.length, 4, "Has 4 total notifications because 4th element was added."); + checkRect(entries[3].boundingClientRect, [0, 100, 300, 400], "Check 4th entry rect"); + assert_equals(entries[3].target.id, 'target4', "Check 4th entry target id."); + checkIsIntersecting(entries, 3, false); + assert_equals(entries[3].intersectionRatio, 0, 'target4 initially has intersectionRatio of 0.'); + runTestCycle(step3, "Set scrollTop=100 and check for one new notification."); + root.scrollTop = 100; +} + +function step3() { + assert_equals(entries.length, 5, "Has 5 total notifications."); + checkRect(entries[4].boundingClientRect, [0, 100, 200, 300], "Check 5th entry rect"); + assert_equals(entries[4].target.id, 'target4', "Check 5th entry target id."); + checkIsIntersecting(entries, 4, true); + assert_equals(entries[4].intersectionRatio, 0, 'target4 still has intersectionRatio of 0.'); + root.scrollTop = 0; // reset to make it easier to refresh and run the test +} + +</script> |